/Engine/Plugins/Runtime/StateTree/Source/StateTreeModule/Public/StateTreeLinker.h
Links reference to an external Object or Struct. This function should only be used when TStateTreeExternalDataHandle<> cannot be used, i.e. the Struct is based on some data.
void LinkExternalData ( [FStateTreeExternalDataHandle](API\Plugins\StateTreeModule\FStateTreeExternalDataHandle) & Handle, const [UStruct](API\Runtime\CoreUObject\UObject\UStruct) * Struct, const [EStateTreeExternalDataRequirement](API\Plugins\StateTreeModule\EStateTreeExternalDataRequiremen-) Requirement )